Oil cup



spf. 6, 1927,

Filed May 11, l1925 Patented Sept. 6, 1.927.

UNITE@ STATES :PAUL SMITH, OF DAYTON, OHIO.

OIL CUP.

Application led May 11, 1923.

This invention relates in general to lubricating devices. and moreparticularly to an oil cup of novel design.

It is an object of my invention to provide an oil cup which may beoperated by a simple pressure of the thumbI on the top of the cap7obviating thereby the necessity ot rotating the cap oif the cup as hasbeen heretofore the practice.

It is further the object of my invention to provide a check valve toprevent the escape of lubricant except as desired.

Other objects of my invention will appear in the accompanyingspecifications and claim, and will beV disclosed in the accompanyingdrawings in which:

Figure l is a central vertical section.

Figure 2 is atop plan view of my device.

Figure 3 is a side elevation of my device.

Referring with greater particularity to the drawings my device will beseen to be comprised as follows: A body portion 1 serves as a containerfor the lubricant. The body is designed in accordance `with the usualpractice in that it has its stem machined to the hexagon shape to lit astandard size wrench so that it can be connected with a lead o r outletpipe 8. This outlet pipe 8 vin turn connects with the mechanism which isto be lubricated and can be bent as shown by valve lines to accommodatethe various conditions of vertical oiling.

In the stem of body l there is lcontainedV the automatic shut oit devicewhich consists of a steel ball check valve 5 which, by the activitiesor'I spring 6 is heldsuitably seated in lower shank of ybody 5.

The novel feature of my device consists primarily in the cover 2 whichis provided with a top 3 consisting of a thin piece of flexible springsteel swedged into the cover and having a convexly curved upper surface.This topB has a small hole drilled through it for theadmission of air atatmospheric pressure.

Directly beneath the hole 7 in the top 3 Serial No. 638,424.

there is another thin piece of spring steel 4 which is swedged intoV thesaine recess ot cover 2 as that which receives top 3. The purpose ofthis second piece of spring steel is that of a baffle designed to keepoil from spashing out through the hole 7. Y

The operation of my device is as follows:

Vhen the hole 7 of the top 3 is open the oil contained in the body willbe underatmospheric pressure. It the operator then places his thumb upontop 3 in such a manner as to cover the opening 7 and then pressesdownwardly on the top 3 the air within the body will be compressedforcing the oil in the body 1 downwardly, unseating the valve 5, andpermitting the oil to reach those parts which are to be lubricated. Whenthe thumb is released top 3 will spring back into its original position,restoring the air within the body to atmospheric pressure, and per`mitting the valve 5 to again be seated by the compression of spring 6.

I claim- In combination, in an oil cup of the character described, a cupbody, a cover for said body comprising a flexible diaphragm andretaining means for securing the same to said cup body, a centrallydisposed aperture in said diaphragm normally maintaining the interior ofsaid body in communicationwith the outside atmosphere, said aperturebeing of such restricted diameter as to adapt the same to be closed lbythe thumb of the operator, a valve adapted to be seated in the lowerportion of said cup body to control the passage of oil therefrom,saidvalve being adapted to be unseated when the aperture is closed anddownward pressure is exerted on said diaphragm, and to be seated whensaid aperture is opened, and a splash plate mounted in said cup body inclose proximity to said aperture tol present the egress of oiltherethrough due to splashing.

In testimony whereof I aiiix my signature.

PAUL s-Mrrn.

